Shimano BR - 9000 brake pad inserts (R55C4) are a perfect fit for alloy rims. You'll get a pair of these high - quality brake pads, which offer excellent braking performance for your bike.

Using these Shimano BR - 9000 brake pads is easy. Just replace your old brake pads with these new ones on your alloy rims. Make sure they are properly installed and aligned for the best braking effect. When riding, if you notice any decrease in braking power, it might be time to check the pads. For maintenance, clean the pads regularly with a soft cloth to remove dirt and debris. Avoid using harsh chemicals as they can damage the pads. Store the pads in a dry place when not in use to prevent rust and corrosion.